How many different colors does this quilt need?
March 23, 2014 11:46 PM Subscribe
My wife wants to make a 10 x 12 square quilt with a random-looking pattern. How many colors would she need for a quilt that follows these rules:
1) No two patches of the same color may touch each other, vertically, horizontally, or diagonally;
2) No pair of patches may be repeated in the same orientation (i.e., if there is a red patch above a blue patch, that combination may not be repeated, but you may
have a blue patch above a red patch);
3) There are no patches of the same color that have the same vertical and horizontal offset: i.e., if there is a red patch with a second red patch that is one down and two across, there may not be a third red patch that's the same distance down and across from that second patch.
posted by Joe in Australia to Science & Nature (17 answers total) 6 users marked this as a favorite